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' 2 sheets-sheet 21 (No Model.)

' L. W. BDYNTON.

- WASHBOILER.

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UNITED STATES PATENT OFFICE.

LEA-NDER XV. BOYNTON, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO IV. F.BOYNTON, OF NEW YORK, N. Y.

WASHBOILER.

SPECIFICATION forming part'of Letters Patent No. 564,777, dated July 28,1896. Application filed July 1, 1895. Serial No. 554,577. (No model.)

To all whom it may concern:

Be it known that I, LEANDER W. BOYNTON, a citizen of the United States,residing at Bridgeport, in the county of Fairfield and State ofConnecticut, have inventedcertain new and useful Improvements inWashboilers, of which the following is a specification.

This invention relates to washboilers and the object of the invention isto provide a washboiler in which the clothes may be washed and the dirtseparated therefrom mainly by the operation of boiling.

A further object of the invention is to provide a boiler in which aconstant circulation of the water therein will be maintained, andin'which the boiling water will be somewhat cooled and spreadsubstantially over the entire surface of the clothes, and thereby morethoroughly penetrate the same.

A further object of the invention is to construct a boiler with suchsimplicity that no part thereof is liableto get out of working order,and to provide a boiler easily accessible at all points in order that itmay be thoroughly cleaned.

In the accompanying drawings, forming a part of this specification,Figure 1 is a view of the boiler having a portion of one side brokenaway and showing the operation of the same when in use. Fig. 2 is alongitudinal vertical section of the same in line a a, Fig. i. Fig. 3 isa vertical transverse section of the same in line b b, Fig. 2. Fig. 4 isa horizontal transverse section in line 0 c, Fig. 2. Fig. 5 is a view ofthe underside of the cover. Fig. 6 is a sectional view in line d d ofthe removable middle plate, and Fig. 7 is a side view thereof.

Similar characters designate like parts in all the figures of thedrawings.

This improved washboiler may be constructed of any suitable material andshape. In the preferred form thereof herein shown the boiler (designatedgenerally as 50) has rectilinear sides and approximately curved ends,and is provided with the usual handles for lifting the same.

The boiler is provided with two independent and separated roof-plates10, extending from side to side thereof, and curved transversely of saidboiler, and inclined downwardly from the inner to the outer endsthereof, forming two separated heating-chambers 8 and 9 at opposite endsof the boiler, which chambers are larger at their inner than at theirouter ends adjacent to the ends of the boiler, and larger adjacent totheir middle than at their sides, and have a relatively large spacebetween the inner ends thereof, said chambers 'openin g into the boilerat their inner ends from their roof-plates to the bottom of said boiler.

For supporting .the roof-plates 10 of the heating-chambers S and 9 theboiler has formed therein, at a point relatively adjacent to the bottomof theboiler, an interior groove or recess 11, in which the edges ofsaid roofplates are set for the purpose of supporting the same. Thisgroove or recess also serves to stiffen the wall of the boiler. In orderto separate these heating or reaction chambers 8 and 9 from each other,and substantially from the upper portion of the boiler, a removablemiddle plate (designated generally as 30, and which, in practice, isperforated for the downward passage of the water in the boiler) is setbetween said roof-plates, and holds these plates apart and in saidgrooves, and is preferably on a horizontal plane with the openings,hereinafter described, in the inner ends of the chambers or slightlybelow the same, and is provided at its ends with vertical plates 12,adapted to form the inner end walls (also designated as the resistanceor retaining walls) of said chambers, said vertical plates 12 havinglaterally-projecting flanges 13 or like devices, whereby said plate issupported onlthe i inner ends of said roofplates, and the verticalplates thereof'substantially close the inner ends of the chambers andform retaining or resistance walls for the water in ebullition, andthereby prevent the outflow of the water in the chambers. By thisparticular construction of the chambers the water will be retainedtherein until steam is generated and reaches a high degree oftension,when the boiling water will be thrown upward with great force;that is to say, the curved inclined roof-plates forming the chambersbeing larger at their inner than at their outer ends, steam will begenerated and retained in the heating-chambers much longer-in proportionto the size of the chambers-than if the roof-plates thereof were on ahorizontal plane, and owing to its compression through the smallerportion of the chambers will be forced through the passageways 14:,hereinafter described, with great force,and against the cover, for thepurpose hereinafter set forth.

Adjacent the end walls of the boiler vertical passage-Ways 14 are formedin any suitable way, but as herein shown they are formed by semicircularplates 15, secured to the end walls of the boiler, to permit arelatively large column of water to be directed against the cover, thelower ends of the passage-ways communicating with the chambers throughopenings 7 in the roof-plates 10, and the upper open ends extending to apoint substantially in a line or slightly above the lower edge .16 ofthe downwardly-projecting flange or rim 17 of the cover 18, hereinafterdescribed.

Adjacent the upper ends of the vertical passage-ways 14, and preferablysecured to the end walls of the boiler, are upwardlycurved deflectingand spreading plates 25, adapted to first deflect the column of waterfrom its vertical direction and then spread the same into arelatively'thin' approximately fan-shaped sheet and direct it in aninclined direction toward the middle or opposite end of the cover, whereit will be made more thorougly effective than would be the case if thewater were not spread into a thin sheet. On striking the cover it isbroken into a spray and spread substantially over every part of theclothes, penetrating the same by intersecting and crossing currents onits return downward passage toward the bottom of the boiler.

A suitable rim,bead, or groove 19 is formed in the interior wall of theboiler and extends around the entire wall below the upper edge thereof,and on this support, which also tends to stifien the boiler, the cover18, by means of its edge 20, is adapted to rest. This cover 18, in orderto form a means for spraying the water and thereby causing it topenetrate substantially every'part of the clothing, is so disposedwithin the boiler that the lower edge 16 of its downwardly-projectingflange or rim 17 will be in line with or slightly below the upper endsof the vertical passage-ways 14, and 'is curved or extended upwardly, soas to permit the water to have acertain amount of upward motion in whichto spread after leaving the passage-ways and before it strikes thecover.

By setting the'cover into the boiler below the edge thereof overflow ofthe water in ebu-llition is also prevented.

In order to permit the free discharge-of :the water from the open upperends of the passage-ways 14 to the top of the cover and keep the-clothesin the boiler away from the ends of such passage-ways, the cover isprovided with a guard-screenor framework 21 of any suitable design andconstruction adaptedfor the purpose herein set forth, and'is hereinspace 22 is preferably formed in this guardscreen 21 to permit the upperends of the passage-ways to extend above or on a level with the screen,so that the clothes cannot work over the ends of the passage-ways andthereby prevent the desired action of the water.

Suitable holes 23 are provided in the cover for the escape of steam,anda suitable catch 24, if desired, may be used to hold the cover in theboiler.

In the use of this improved boiler the clothes, having been placedtherein and the boiler partially filled with water, will be pressedbelow the open upper ends of the passage-ways 14 by means of theguard-screen 21, secured to the cover, and the free discharge of thewater from such passage-ways permitted at all times.

The boiling water'will be retained in the heating or reaction chambers 8and 9 until the steam generated has reached a high degree of tension,when it will be thrown with great force, by means of the particularconstruction of chambers, up through the passage-ways, deflected fromits vertical direction to an inclined direction, spread 'into a thinapproximately fan-shaped sheet, and directed against the top of thecover by means of the curved deflecting and spreading plates 25, whereit will be broken into a spray and spread substantially over every partof the clothes in the boiler, to thereby penetrate the same on itsreturn downward passage by its intersecting and crossing currents.

The discharge of the columns of watereach time creates a suction,drawing additional water into the heating-chambers, to be retainedtherein until a portion thereof is generated into steam at a highdegreeof tension, when the boiling water will be thrown out as before, thuscreating a constant circulation of the water through the clothes. Theclothes tend to move upwardly by the heating of the water in thechamber, this action thereby helping to remove the dirt from the clothesand also permitting the thorough penetration of the suds therethrough.By means of this construction of passage-ways and cover, together withthe great amount of forcingpower obtained by the particular constructionof the heating-chambers, the column of water isdirected against thecover with great force, whereby itlis broken into a spray, as beforestated, and tends to rebound with considerable force and action upon the:surface of-the clothes.

When it is desired 'to-clean the boiler,.it is simply necessary toremove the middle plate 30, whereby, owing to the enlarged inner ends ofthe chambers, they will be easily accessible and the boiler can bethoroughly cleaned. By this simple construction of the boiler themovable parts thereof are reduced to a minimum, and the use of valves inthe plate 30 obviated, as the clothes resting upon the outer edges ofthe heating-chambers, which form a support for the clothes and therebyprevent them from being pressed too compactly on the plate, prevent thereturn of the water through such plate after it reaches the bottom ofthe boiler, while the vertical plates 12 efiectually retain the water inthe heating-chambers, and also tend to hold the roof-plates in place.

Having thus described my invention, I claim- 1. A boiler havingremovable roof-plates,

and a perforated middle plate which serves to secure the roof-plates inposition.

2. A boiler having a groove in its interior wall adjacent to the bottomthereof, and hav-' ing two independent and separated roofplates disposedin said groove and extending from side to side of said boiler, andforming two separated and independent chambers at LEANDER W. BOYNTON.

W'itnesses:

SAMUEL C. NORTHROP, WILLIAM M. NICHOLS.

